Range

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The range of a function f:A \to B is the subset of B given as \{ f(a) \mid a \in A \}, i.e., the set of elements of B that arise as outputs of the function.

Examples:

  • Given f:A \to B so that for every x\in A: f=x^2 in this case the range is a subset of B encompassing all its positive real numbers including 0.